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Finding the Fourth Proportional to 621,669.75, 932,504.63 and 200,945.63

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Solution

The fourth proportional to 621,669.75, 932,504.63 and 200,945.63 is: 301,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,669.75 : 932,504.63 = 200,945.63 : x
  2. Step 2: Convert to fraction form
    621,669.75/932,504.63 = 200,945.63/x
  3. Step 3: Cross multiply
    621,669.75x = 932,504.63 × 200,945.63
  4. Step 4: Simplify right side
    621,669.75x = 187,382,730,353.27
  5. Step 5: Solve for x
    x = 187,382,730,353.27/621,669.75
  6. Step 6: Final answer
    x = 301,418.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.